system.h

/* * arch/arm/mach-at91/include/mach/system.h * * Copyright (C) 2003 SAN People * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */#ifndef __ASM_ARCH_SYSTEM_H#define __ASM_ARCH_SYSTEM_H#include <mach/hardware.h>#include <mach/at91_st.h>#include <mach/at91_dbgu.h>#include <mach/at91_pmc.h>staticinlinevoid arch_idle(void)
{
/* * Disable the processor clock. The processor will be automatically * re-enabled by an interrupt or by a reset. */#ifdef AT91_PS at91_sys_write(AT91_PS_CR, AT91_PS_CR_CPU);
#else at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
#endif#ifndef CONFIG_CPU_ARM920T/* * Set the processor (CP15) into 'Wait for Interrupt' mode. * Post-RM9200 processors need this in conjunction with the above * to save power when idle. */
cpu_do_idle();
#endif}
void (*at91_arch_reset)(void);
staticinlinevoid arch_reset(char mode, constchar *cmd)
{
/* call the CPU-specific reset function */if (at91_arch_reset)
(at91_arch_reset)();
}
#endif